The Lymphatic And Immune System

The immune system is made up of several types of cells that work together to fight infections. Lymph cells (called lymphocytes) are the main type of cell in the adaptive immune system. There are 2 types of lymph cells: T cells and B cells. When B cells respond to an infection, they change into plasma cells. The plasma cells are found mainly in the bone marrow—the soft, inner part of some bones. The plasma cells

Human immunodeficiency virus or HIV is a virus that causes acquired immune deficiency syndrome better known as AIDs. HIV is spread through the sharing of needles or unprotected sex. It can be spread through person to person by blood and other bodily fluids. The desease cannot be spread through hand holding, sharing food and kissing. A person can go years without showing sympthoms of the virus and be unaware they carry it. They can be tested to see if they carry the virus. If a clinet is cut that is HIV positive all implements that have come into contact with the blood must be immediately disinfected with a strong EPA registered disinfectant. If tools cannot be disinfected throw them

The immune system plays a vital role in helping the body to fight diseases, as well as pathogens, the disease-causing factors. It is mainly composed of the tonsils and adenoids, the lymph nodes and lymphatic vessels, the spleen, appendix, and bone marrow. The main purpose of the immune system is to assist the body in its struggle to maintain optimal health.

HIV (human immunodeficiency virus) infection is a long-term (chronic) viral infection. HIV kills white blood cells that help to control the body's defense system (immune system) and fight infection. HIV spreads through semen, pre-seminal fluid, blood, breast milk, rectal fluid, and vaginal fluid. HIV is commonly spread through sexual contact and sharing needles or syringes, because these behaviors involve exchanging bodily fluids. Without treatment, HIV can turn into AIDS (acquired immunodeficiency syndrome), an advanced stage of HIV infection. AIDS is a very serious illness and can be life-threatening.

Red and white blood cells are the two types of blood cells in the human body. Red blood cells transport oxygen around the body which is transferred through the bloodstream. It moves oxygen into the body and then removes it. They are absorbed through its haemoglobin.

HIV is communicable disease that is caused by virus. This particular virus attacks the immune system which means people who suffer from HIV find it more difficult to fight of infection than the average person who does not suffer from HIV. This disease can be transmitted by direct contact, generally it is transferred by sexual contact between partners in fact 95% of those who suffer from HIV are contracted it this way. It can also be contracted by using dirty needles or any other contaminated tool. It can also be contracted by sharing sexual toys. HIV is commonly found in a person’s bodily fluids this means it is spread through, Sperm, vaginal and even anal fluids, breast milk and blood are also common.

HIV is a virus that can lead to AIDS. Patients infected with HIV often shows no symptoms until the disease has progressed to AIDS. HIV is transmitted through bodily fluids, but cannot be transmitted through casual contact. Most commonly, HIV is transmitted through sexual contact. It may be transmitted through blood-to-blood contact, such as needle sharing or accidental needle sticks in a healthcare setting. It may also be transmitted during pregnancy or birth from mother to child. It cannot be transmitted through casual contact such as hugging, playing sports or touching something that was touched by someone infected (CDC, n.d).

As a disease, HIV, or the Human Immunodeficiency Virus is a blood-borne virus that is transmitted from person to person via sexual intercourse, mother to child, or intravenous drug paraphernalia. The virus itself causes, usually over a period of time, Acquired Immunodeficiency Syndrome, or AIDS. AIDS actually targets the immune system and causes an immunosuppression which makes people who have the virus more susceptible to cancers and infections. This is the most unique feature of the HIV/AIDS virus and is the most deadly since its implications are destructive if not properly treated (Moore 51). The significance of this disease is one that began in the 1980’s and initially was thought to be a virus only found within homosexual communities and was even originally called Gay-Related Immunodeficiency Virus. However, in 1981, it was found that the virus was spreading beyond the gay community when Blacks accounted for 25% of the HIV/AIDs population and a trend began where Blacks continued to contract HIV significantly more than

A. Compare and contrast afferent and efferent lymphatic vessels. Describe in one way in which they are similar and one way they are different.

It collects excess fluid and particulate matter. It deposits them in the blood stream through the

The lymphatic system is very similar, and works with and directly at the side of the cardiovascular system. The lymphatic system has a network of vessels like the circulatory system which pump a plasma-like fluid called lymph around it’s own lymph vessels, and are found in most other tissues of the body, except the central nervous system.

Through a series of steps called the immune response, the body’s immune system attacks invading disease-causing organisms and substances. The cells involved in this immune response are called leukocytes. Leukocytes are produced and stored in the thymus, spleen, and bone marrow (lymphoid organs). There is also lymphoid tissue throughout the body that houses leukocytes (lymph nodes). The leukocytes circulate through the body between the organs and nodes via lymphatic vessels and blood vessels.

The lymphatic system is collected of lymph vessels, lymph nodes, and organs. The functions of this system include the absorption of excess fluid and its return to the blood stream, absorption of fat (in the villi of the small intestine) and the immune system function.

Lymphocytes are a type of white blood cell, which are an important part of the immune system. Lymphocytes can defend the body against infection because they can distinguish the body’s own cells from foreign ones. Once they recognize foreign material in the body, they produce chemicals to destroy that material. Two types of lymphocyte are produced in the bone marrow before birth.

HIV, or the Human Immunodeficiency Virus, is a virus which damages and kills cells of the immune system. It attacks the T-cells, key cells of the immune system, and uses them to make copies of itself. After being infected with the virus it progressively interferes and eventually destroys the immune system's ability to fight the anti-genes. HIV may develop into the syndrome AIDS, the Acquired Immunodeficiency Syndrome. HIV is an STD - a sexually transmitted disease - and therefore most commonly it is spread through sexual contact, and the virus mainly enters the body through the penis, mouth, lining of the vagina or vulva during sexual activity. HIV can also be spread through sharing syringes or needles with someone who is infected with the